[#126378485] README updated to include PHP example
[#126378485] README updated to include PHP example

CrowdEmotion/crowdemotion-api-clients-examples,CrowdEmotion/crowdemotion-api-clients-examples,CrowdEmotion/crowdemotion-api-clients-examples,CrowdEmotion/crowdemotion-api-clients-examples,CrowdEmotion/crowdemotion-api-clients-examples